lint: Flatten lint image entry points

ci/lint_imagefile

@@ -6,19 +6,11 @@
 
 FROM mirror.gcr.io/ubuntu:24.04
 
-ENV DEBIAN_FRONTEND=noninteractive
-ENV LC_ALL=C.UTF-8
-
 COPY ./ci/retry/retry /ci_retry
 COPY ./.python-version /.python-version
-COPY ./ci/lint/container-entrypoint.sh /entrypoint.sh
 COPY ./ci/lint/01_install.sh /install.sh
 
 RUN /install.sh && \
-  echo 'alias lint="./ci/lint/06_script.sh"' >> ~/.bashrc && \
-  chmod 755 /entrypoint.sh && \
   rm -rf /var/lib/apt/lists/*
 
-
 WORKDIR /bitcoin
-ENTRYPOINT ["/entrypoint.sh"]